<div class="panel">
  <div class="panel-heading">
    <h3 class="panel-title">Histórico de carga</h3>
  </div>
    <div class="panel-body text-center">
        <div class="row col-md-10 col-md-offset-1" data-ng-controller="flotChartCtrl">
          <div class="panel panel-default">
            <div class="panel-body">
|             <div data-flot-chart
                   data-data="line1.data"
                   data-options="line1.options"
                   style="width: 100%; height: 300px;"
              ></div>
            </div>
          </div>            
        </div>
    </div>
</div>